current laws are not enforced, which sparked a testy exchange between south carolina senator lindsey graham and milwaukee police chief edward flynn. >> if it's such an important issue, why aren't we prosecuting people who fail a background check? and there are 15 questions there; they're not hard to understand if you're filling out the form. so i'm a bit frustrated that we say one thing-- how important it is-- but in the real world, we absolutely do nothing to enforce the laws on the books. now, let's talk... >> i-- you know, just for the record, from my point of view, senator, the purpose of the background check. >> how many cases have you made... how many cases have you made... >> you know what? it doesn't matter. it's a paper thing. i want to stop 76... >> well, can i ask the questions? >> i want to finish the answer. >> well, no. i'm... >> i want to stop 76,000 people from buying guns illegally. that's what a background does. if you think we're going to do paperwork prosecutions, you're wrong! >> reporter: the feinstein proposal is not expected to pass congress, given the opposition of